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首页> 外文期刊>Analytical methods >Chemical composition of the essential oils from the hulls of Pistacia vera L by using magnetic nanoparticle-assisted microwave (MW) distillation: comparison with routine MW and conventional hydrodistillation
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Chemical composition of the essential oils from the hulls of Pistacia vera L by using magnetic nanoparticle-assisted microwave (MW) distillation: comparison with routine MW and conventional hydrodistillation

机译：磁性纳米粒子辅助微波蒸馏法提取黄连木船壳精油的化学成分：与常规MW蒸馏法和常规加氢蒸馏法的比较

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摘要

In this paper, classical hydrodistillation (HD) and microwave assisted hydrodistillation (MAHD) are used for extraction of Pistachio hull essential oil combined with subsequent gas chromatographic mass spectrometric (GC-MS) determination. The major focus is on synthesis of amine-functionalized magnetite nanoparticles (AFMN) and their effects on essential oils from quantitative and qualitative points of view. In addition, experimental parameters such as power and time are optimized in the proposed and improved MAHD technique. The obtained results show that the quantity of the extracted essence is negligible both in the presence and absence of AFMN in the HD method. However, the essential oil yield was significantly increased when using MAHD method particularly in the presence of AFMN, in which more yield (0.8%) and more chemical diversity (25 compounds) were obtained. Generally, the most important compounds in the extracted essential oil in the presence of magnetic nanoparticles included: α-pinene (31.5%), α-terpinolene (20.2%), myrcene (11.5%), pinocarvone (6.2%) and camphene (4.8%). On the other hand, the most important compounds in the extracted compounds in the absence of magnetic nanoparticles were found to be a-pinene (31.8%), a-terpinolene (20.3%), myrcene (12.2%), pinocarvone (6.2%) and camphene (4.7%). According to the results, simultaneous use of microwave and nanoparticles significantly increase the quality and quantity of volatile essential oils of Pistacia vera.
机译：本文采用经典加氢蒸馏（HD）和微波辅助加氢蒸馏（MAHD）提取开心果壳精油，并结合随后的气相色谱质谱（GC-MS）测定。从定量和定性的角度来看，主要重点是胺官能化磁铁矿纳米颗粒（AFMN）的合成及其对精油的影响。此外，在提出和改进的MAHD技术中，优化了诸如功率和时间之类的实验参数。获得的结果表明，在HD方法中，无论是否存在AFMN，提取的香精的量都可以忽略不计。但是，当使用MAHD方法时，尤其是在AFMN的存在下，香精油的收率显着提高，从而获得了更高的收率（0.8％）和更多的化学多样性（25种化合物）。通常，在磁性纳米粒子存在的情况下，提取的香精油中最重要的化合物包括：α-pine烯（31.5％），α-萜品烯（20.2％），月桂烯（11.5％），松香酮（6.2％）和and烯（4.8） ％）。另一方面，在没有磁性纳米粒子的情况下，提取的化合物中最重要的化合物是α-pine烯（31.8％），α-萜品油烯（20.3％），月桂烯（12.2％），松香酮（6.2％）和camp烯（4.7％）。根据结果​​，微波和纳米粒子的同时使用显着提高了黄连挥发油的质量和数量。

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